Home / 2,074.61-2,862.45-1,178.15

Finding the Fourth Proportional to 2,074.61, 2,862.45 and 1,178.15

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Solution

The fourth proportional to 2,074.61, 2,862.45 and 1,178.15 is: 1,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.61 : 2,862.45 = 1,178.15 : x
  2. Step 2: Convert to fraction form
    2,074.61/2,862.45 = 1,178.15/x
  3. Step 3: Cross multiply
    2,074.61x = 2,862.45 × 1,178.15
  4. Step 4: Simplify right side
    2,074.61x = 3,372,381.16
  5. Step 5: Solve for x
    x = 3,372,381.16/2,074.61
  6. Step 6: Final answer
    x = 1,625.55

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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.