Home / 3,139.07-4,710.65-2,319.39

Finding the Fourth Proportional to 3,139.07, 4,710.65 and 2,319.39

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Solution

The fourth proportional to 3,139.07, 4,710.65 and 2,319.39 is: 3,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.07 : 4,710.65 = 2,319.39 : x
  2. Step 2: Convert to fraction form
    3,139.07/4,710.65 = 2,319.39/x
  3. Step 3: Cross multiply
    3,139.07x = 4,710.65 × 2,319.39
  4. Step 4: Simplify right side
    3,139.07x = 10,925,822.91
  5. Step 5: Solve for x
    x = 10,925,822.91/3,139.07
  6. Step 6: Final answer
    x = 3,480.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.