Home / 5,345.82-7,379.28-4,785.30

Finding the Fourth Proportional to 5,345.82, 7,379.28 and 4,785.30

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Solution

The fourth proportional to 5,345.82, 7,379.28 and 4,785.30 is: 6,605.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.82 : 7,379.28 = 4,785.30 : x
  2. Step 2: Convert to fraction form
    5,345.82/7,379.28 = 4,785.30/x
  3. Step 3: Cross multiply
    5,345.82x = 7,379.28 × 4,785.30
  4. Step 4: Simplify right side
    5,345.82x = 35,312,068.58
  5. Step 5: Solve for x
    x = 35,312,068.58/5,345.82
  6. Step 6: Final answer
    x = 6,605.55

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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.