Home / 3,139.90-4,710.15-1,060.18

Finding the Fourth Proportional to 3,139.90, 4,710.15 and 1,060.18

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Solution

The fourth proportional to 3,139.90, 4,710.15 and 1,060.18 is: 1,590.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.90 : 4,710.15 = 1,060.18 : x
  2. Step 2: Convert to fraction form
    3,139.90/4,710.15 = 1,060.18/x
  3. Step 3: Cross multiply
    3,139.90x = 4,710.15 × 1,060.18
  4. Step 4: Simplify right side
    3,139.90x = 4,993,595.05
  5. Step 5: Solve for x
    x = 4,993,595.05/3,139.90
  6. Step 6: Final answer
    x = 1,590.37

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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.