Home / 5,616.08-7,740.90-5,145.48

Finding the Fourth Proportional to 5,616.08, 7,740.90 and 5,145.48

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Solution

The fourth proportional to 5,616.08, 7,740.90 and 5,145.48 is: 7,092.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.08 : 7,740.90 = 5,145.48 : x
  2. Step 2: Convert to fraction form
    5,616.08/7,740.90 = 5,145.48/x
  3. Step 3: Cross multiply
    5,616.08x = 7,740.90 × 5,145.48
  4. Step 4: Simplify right side
    5,616.08x = 39,830,646.13
  5. Step 5: Solve for x
    x = 39,830,646.13/5,616.08
  6. Step 6: Final answer
    x = 7,092.25

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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.