Home / 1,541.74-2,312.70-1,178.76

Finding the Fourth Proportional to 1,541.74, 2,312.70 and 1,178.76

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Solution

The fourth proportional to 1,541.74, 2,312.70 and 1,178.76 is: 1,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.74 : 2,312.70 = 1,178.76 : x
  2. Step 2: Convert to fraction form
    1,541.74/2,312.70 = 1,178.76/x
  3. Step 3: Cross multiply
    1,541.74x = 2,312.70 × 1,178.76
  4. Step 4: Simplify right side
    1,541.74x = 2,726,118.25
  5. Step 5: Solve for x
    x = 2,726,118.25/1,541.74
  6. Step 6: Final answer
    x = 1,768.21

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1.5x scale

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.