Home / 1,541.16-2,312.22-663.28

Finding the Fourth Proportional to 1,541.16, 2,312.22 and 663.28

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Solution

The fourth proportional to 1,541.16, 2,312.22 and 663.28 is: 995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.16 : 2,312.22 = 663.28 : x
  2. Step 2: Convert to fraction form
    1,541.16/2,312.22 = 663.28/x
  3. Step 3: Cross multiply
    1,541.16x = 2,312.22 × 663.28
  4. Step 4: Simplify right side
    1,541.16x = 1,533,649.28
  5. Step 5: Solve for x
    x = 1,533,649.28/1,541.16
  6. Step 6: Final answer
    x = 995.13

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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.