Home / 5,637.10-7,779.47-3,399.70

Finding the Fourth Proportional to 5,637.10, 7,779.47 and 3,399.70

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Solution

The fourth proportional to 5,637.10, 7,779.47 and 3,399.70 is: 4,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.10 : 7,779.47 = 3,399.70 : x
  2. Step 2: Convert to fraction form
    5,637.10/7,779.47 = 3,399.70/x
  3. Step 3: Cross multiply
    5,637.10x = 7,779.47 × 3,399.70
  4. Step 4: Simplify right side
    5,637.10x = 26,447,853.21
  5. Step 5: Solve for x
    x = 26,447,853.21/5,637.10
  6. Step 6: Final answer
    x = 4,691.75

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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.