Home / 3,125.42-4,312.96-1,866.68

Finding the Fourth Proportional to 3,125.42, 4,312.96 and 1,866.68

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Solution

The fourth proportional to 3,125.42, 4,312.96 and 1,866.68 is: 2,575.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.42 : 4,312.96 = 1,866.68 : x
  2. Step 2: Convert to fraction form
    3,125.42/4,312.96 = 1,866.68/x
  3. Step 3: Cross multiply
    3,125.42x = 4,312.96 × 1,866.68
  4. Step 4: Simplify right side
    3,125.42x = 8,050,916.17
  5. Step 5: Solve for x
    x = 8,050,916.17/3,125.42
  6. Step 6: Final answer
    x = 2,575.95

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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.