Home / 1,264.20-1,895.40-570.30

Finding the Fourth Proportional to 1,264.20, 1,895.40 and 570.30

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Solution

The fourth proportional to 1,264.20, 1,895.40 and 570.30 is: 855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.20 : 1,895.40 = 570.30 : x
  2. Step 2: Convert to fraction form
    1,264.20/1,895.40 = 570.30/x
  3. Step 3: Cross multiply
    1,264.20x = 1,895.40 × 570.30
  4. Step 4: Simplify right side
    1,264.20x = 1,080,946.62
  5. Step 5: Solve for x
    x = 1,080,946.62/1,264.20
  6. Step 6: Final answer
    x = 855.04

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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.