Home / 1,541.81-2,312.73-387.56

Finding the Fourth Proportional to 1,541.81, 2,312.73 and 387.56

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Solution

The fourth proportional to 1,541.81, 2,312.73 and 387.56 is: 581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.81 : 2,312.73 = 387.56 : x
  2. Step 2: Convert to fraction form
    1,541.81/2,312.73 = 387.56/x
  3. Step 3: Cross multiply
    1,541.81x = 2,312.73 × 387.56
  4. Step 4: Simplify right side
    1,541.81x = 896,327.42
  5. Step 5: Solve for x
    x = 896,327.42/1,541.81
  6. Step 6: Final answer
    x = 581.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.