Home / 1,475.16-2,211.30-1,256.28

Finding the Fourth Proportional to 1,475.16, 2,211.30 and 1,256.28

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Solution

The fourth proportional to 1,475.16, 2,211.30 and 1,256.28 is: 1,883.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.16 : 2,211.30 = 1,256.28 : x
  2. Step 2: Convert to fraction form
    1,475.16/2,211.30 = 1,256.28/x
  3. Step 3: Cross multiply
    1,475.16x = 2,211.30 × 1,256.28
  4. Step 4: Simplify right side
    1,475.16x = 2,778,011.96
  5. Step 5: Solve for x
    x = 2,778,011.96/1,475.16
  6. Step 6: Final answer
    x = 1,883.19

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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.