Home / 1,130.18-1,694.68-436.07

Finding the Fourth Proportional to 1,130.18, 1,694.68 and 436.07

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Solution

The fourth proportional to 1,130.18, 1,694.68 and 436.07 is: 653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.18 : 1,694.68 = 436.07 : x
  2. Step 2: Convert to fraction form
    1,130.18/1,694.68 = 436.07/x
  3. Step 3: Cross multiply
    1,130.18x = 1,694.68 × 436.07
  4. Step 4: Simplify right side
    1,130.18x = 739,002.25
  5. Step 5: Solve for x
    x = 739,002.25/1,130.18
  6. Step 6: Final answer
    x = 653.88

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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.