Home / 3,390.80-4,680.98-2,587.53

Finding the Fourth Proportional to 3,390.80, 4,680.98 and 2,587.53

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Solution

The fourth proportional to 3,390.80, 4,680.98 and 2,587.53 is: 3,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.80 : 4,680.98 = 2,587.53 : x
  2. Step 2: Convert to fraction form
    3,390.80/4,680.98 = 2,587.53/x
  3. Step 3: Cross multiply
    3,390.80x = 4,680.98 × 2,587.53
  4. Step 4: Simplify right side
    3,390.80x = 12,112,197.78
  5. Step 5: Solve for x
    x = 12,112,197.78/3,390.80
  6. Step 6: Final answer
    x = 3,572.08

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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.