Home / 1,130.21-1,695.30-582.10

Finding the Fourth Proportional to 1,130.21, 1,695.30 and 582.10

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Solution

The fourth proportional to 1,130.21, 1,695.30 and 582.10 is: 873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.21 : 1,695.30 = 582.10 : x
  2. Step 2: Convert to fraction form
    1,130.21/1,695.30 = 582.10/x
  3. Step 3: Cross multiply
    1,130.21x = 1,695.30 × 582.10
  4. Step 4: Simplify right side
    1,130.21x = 986,834.13
  5. Step 5: Solve for x
    x = 986,834.13/1,130.21
  6. Step 6: Final answer
    x = 873.14

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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.