Home / 1,510.44-2,265.84-1,128.12

Finding the Fourth Proportional to 1,510.44, 2,265.84 and 1,128.12

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Solution

The fourth proportional to 1,510.44, 2,265.84 and 1,128.12 is: 1,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.44 : 2,265.84 = 1,128.12 : x
  2. Step 2: Convert to fraction form
    1,510.44/2,265.84 = 1,128.12/x
  3. Step 3: Cross multiply
    1,510.44x = 2,265.84 × 1,128.12
  4. Step 4: Simplify right side
    1,510.44x = 2,556,139.42
  5. Step 5: Solve for x
    x = 2,556,139.42/1,510.44
  6. Step 6: Final answer
    x = 1,692.31

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Double scale
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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.