Home / 2,487.16-3,710.93-2,117.80

Finding the Fourth Proportional to 2,487.16, 3,710.93 and 2,117.80

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Solution

The fourth proportional to 2,487.16, 3,710.93 and 2,117.80 is: 3,159.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.16 : 3,710.93 = 2,117.80 : x
  2. Step 2: Convert to fraction form
    2,487.16/3,710.93 = 2,117.80/x
  3. Step 3: Cross multiply
    2,487.16x = 3,710.93 × 2,117.80
  4. Step 4: Simplify right side
    2,487.16x = 7,859,007.55
  5. Step 5: Solve for x
    x = 7,859,007.55/2,487.16
  6. Step 6: Final answer
    x = 3,159.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.