Home / 1,541.10-2,311.18-810.28

Finding the Fourth Proportional to 1,541.10, 2,311.18 and 810.28

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Solution

The fourth proportional to 1,541.10, 2,311.18 and 810.28 is: 1,215.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.10 : 2,311.18 = 810.28 : x
  2. Step 2: Convert to fraction form
    1,541.10/2,311.18 = 810.28/x
  3. Step 3: Cross multiply
    1,541.10x = 2,311.18 × 810.28
  4. Step 4: Simplify right side
    1,541.10x = 1,872,702.93
  5. Step 5: Solve for x
    x = 1,872,702.93/1,541.10
  6. Step 6: Final answer
    x = 1,215.17

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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.