Home / 1,151.08-1,588.23-653.60

Finding the Fourth Proportional to 1,151.08, 1,588.23 and 653.60

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Solution

The fourth proportional to 1,151.08, 1,588.23 and 653.60 is: 901.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.08 : 1,588.23 = 653.60 : x
  2. Step 2: Convert to fraction form
    1,151.08/1,588.23 = 653.60/x
  3. Step 3: Cross multiply
    1,151.08x = 1,588.23 × 653.60
  4. Step 4: Simplify right side
    1,151.08x = 1,038,067.13
  5. Step 5: Solve for x
    x = 1,038,067.13/1,151.08
  6. Step 6: Final answer
    x = 901.82

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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.