Home / 5,351.59-7,386.78-3,114.47

Finding the Fourth Proportional to 5,351.59, 7,386.78 and 3,114.47

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Solution

The fourth proportional to 5,351.59, 7,386.78 and 3,114.47 is: 4,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.59 : 7,386.78 = 3,114.47 : x
  2. Step 2: Convert to fraction form
    5,351.59/7,386.78 = 3,114.47/x
  3. Step 3: Cross multiply
    5,351.59x = 7,386.78 × 3,114.47
  4. Step 4: Simplify right side
    5,351.59x = 23,005,904.71
  5. Step 5: Solve for x
    x = 23,005,904.71/5,351.59
  6. Step 6: Final answer
    x = 4,298.89

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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.