Home / 1,535.59-2,117.22-1,299.13

Finding the Fourth Proportional to 1,535.59, 2,117.22 and 1,299.13

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Solution

The fourth proportional to 1,535.59, 2,117.22 and 1,299.13 is: 1,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.59 : 2,117.22 = 1,299.13 : x
  2. Step 2: Convert to fraction form
    1,535.59/2,117.22 = 1,299.13/x
  3. Step 3: Cross multiply
    1,535.59x = 2,117.22 × 1,299.13
  4. Step 4: Simplify right side
    1,535.59x = 2,750,544.02
  5. Step 5: Solve for x
    x = 2,750,544.02/1,535.59
  6. Step 6: Final answer
    x = 1,791.20

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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.