Home / 1,511.04-2,264.40-859.80

Finding the Fourth Proportional to 1,511.04, 2,264.40 and 859.80

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Solution

The fourth proportional to 1,511.04, 2,264.40 and 859.80 is: 1,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.04 : 2,264.40 = 859.80 : x
  2. Step 2: Convert to fraction form
    1,511.04/2,264.40 = 859.80/x
  3. Step 3: Cross multiply
    1,511.04x = 2,264.40 × 859.80
  4. Step 4: Simplify right side
    1,511.04x = 1,946,931.12
  5. Step 5: Solve for x
    x = 1,946,931.12/1,511.04
  6. Step 6: Final answer
    x = 1,288.47

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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.