Home / 1,130.17-1,695.26-399.35

Finding the Fourth Proportional to 1,130.17, 1,695.26 and 399.35

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Solution

The fourth proportional to 1,130.17, 1,695.26 and 399.35 is: 599.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.17 : 1,695.26 = 399.35 : x
  2. Step 2: Convert to fraction form
    1,130.17/1,695.26 = 399.35/x
  3. Step 3: Cross multiply
    1,130.17x = 1,695.26 × 399.35
  4. Step 4: Simplify right side
    1,130.17x = 677,002.08
  5. Step 5: Solve for x
    x = 677,002.08/1,130.17
  6. Step 6: Final answer
    x = 599.03

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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.