Home / 2,740.59-3,781.76-1,677.98

Finding the Fourth Proportional to 2,740.59, 3,781.76 and 1,677.98

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Solution

The fourth proportional to 2,740.59, 3,781.76 and 1,677.98 is: 2,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.59 : 3,781.76 = 1,677.98 : x
  2. Step 2: Convert to fraction form
    2,740.59/3,781.76 = 1,677.98/x
  3. Step 3: Cross multiply
    2,740.59x = 3,781.76 × 1,677.98
  4. Step 4: Simplify right side
    2,740.59x = 6,345,718.71
  5. Step 5: Solve for x
    x = 6,345,718.71/2,740.59
  6. Step 6: Final answer
    x = 2,315.46

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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.