Home / 5,572.18-7,686.73-3,779.05

Finding the Fourth Proportional to 5,572.18, 7,686.73 and 3,779.05

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Solution

The fourth proportional to 5,572.18, 7,686.73 and 3,779.05 is: 5,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.18 : 7,686.73 = 3,779.05 : x
  2. Step 2: Convert to fraction form
    5,572.18/7,686.73 = 3,779.05/x
  3. Step 3: Cross multiply
    5,572.18x = 7,686.73 × 3,779.05
  4. Step 4: Simplify right side
    5,572.18x = 29,048,518.11
  5. Step 5: Solve for x
    x = 29,048,518.11/5,572.18
  6. Step 6: Final answer
    x = 5,213.13

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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.