Home / 5,017.38-6,923.68-2,779.15

Finding the Fourth Proportional to 5,017.38, 6,923.68 and 2,779.15

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Solution

The fourth proportional to 5,017.38, 6,923.68 and 2,779.15 is: 3,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,017.38 : 6,923.68 = 2,779.15 : x
  2. Step 2: Convert to fraction form
    5,017.38/6,923.68 = 2,779.15/x
  3. Step 3: Cross multiply
    5,017.38x = 6,923.68 × 2,779.15
  4. Step 4: Simplify right side
    5,017.38x = 19,241,945.27
  5. Step 5: Solve for x
    x = 19,241,945.27/5,017.38
  6. Step 6: Final answer
    x = 3,835.06

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Half scale
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Double scale
Find fourth proportional to 5,018.38, 6,925.06 and 2,780.15
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.