Home / 1,577.16-2,175.80-1,105.13

Finding the Fourth Proportional to 1,577.16, 2,175.80 and 1,105.13

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Solution

The fourth proportional to 1,577.16, 2,175.80 and 1,105.13 is: 1,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.16 : 2,175.80 = 1,105.13 : x
  2. Step 2: Convert to fraction form
    1,577.16/2,175.80 = 1,105.13/x
  3. Step 3: Cross multiply
    1,577.16x = 2,175.80 × 1,105.13
  4. Step 4: Simplify right side
    1,577.16x = 2,404,541.77
  5. Step 5: Solve for x
    x = 2,404,541.77/1,577.16
  6. Step 6: Final answer
    x = 1,524.60

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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.