Home / 5,497.81-7,587.47-3,140.71

Finding the Fourth Proportional to 5,497.81, 7,587.47 and 3,140.71

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Solution

The fourth proportional to 5,497.81, 7,587.47 and 3,140.71 is: 4,334.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,497.81 : 7,587.47 = 3,140.71 : x
  2. Step 2: Convert to fraction form
    5,497.81/7,587.47 = 3,140.71/x
  3. Step 3: Cross multiply
    5,497.81x = 7,587.47 × 3,140.71
  4. Step 4: Simplify right side
    5,497.81x = 23,830,042.90
  5. Step 5: Solve for x
    x = 23,830,042.90/5,497.81
  6. Step 6: Final answer
    x = 4,334.46

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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.