Home / 2,302.81-3,178.10-1,358.91

Finding the Fourth Proportional to 2,302.81, 3,178.10 and 1,358.91

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Solution

The fourth proportional to 2,302.81, 3,178.10 and 1,358.91 is: 1,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.81 : 3,178.10 = 1,358.91 : x
  2. Step 2: Convert to fraction form
    2,302.81/3,178.10 = 1,358.91/x
  3. Step 3: Cross multiply
    2,302.81x = 3,178.10 × 1,358.91
  4. Step 4: Simplify right side
    2,302.81x = 4,318,755.27
  5. Step 5: Solve for x
    x = 4,318,755.27/2,302.81
  6. Step 6: Final answer
    x = 1,875.43

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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.