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Finding the Fourth Proportional to 5,339.70, 7,371.23 and 3,807.59

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Solution

The fourth proportional to 5,339.70, 7,371.23 and 3,807.59 is: 5,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.70 : 7,371.23 = 3,807.59 : x
  2. Step 2: Convert to fraction form
    5,339.70/7,371.23 = 3,807.59/x
  3. Step 3: Cross multiply
    5,339.70x = 7,371.23 × 3,807.59
  4. Step 4: Simplify right side
    5,339.70x = 28,066,565.74
  5. Step 5: Solve for x
    x = 28,066,565.74/5,339.70
  6. Step 6: Final answer
    x = 5,256.21

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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.