Home / 1,715.21-2,367.81-1,149.02

Finding the Fourth Proportional to 1,715.21, 2,367.81 and 1,149.02

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Solution

The fourth proportional to 1,715.21, 2,367.81 and 1,149.02 is: 1,586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.21 : 2,367.81 = 1,149.02 : x
  2. Step 2: Convert to fraction form
    1,715.21/2,367.81 = 1,149.02/x
  3. Step 3: Cross multiply
    1,715.21x = 2,367.81 × 1,149.02
  4. Step 4: Simplify right side
    1,715.21x = 2,720,649.38
  5. Step 5: Solve for x
    x = 2,720,649.38/1,715.21
  6. Step 6: Final answer
    x = 1,586.19

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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.