Home / 1,508.02-2,080.69-918.14

Finding the Fourth Proportional to 1,508.02, 2,080.69 and 918.14

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Solution

The fourth proportional to 1,508.02, 2,080.69 and 918.14 is: 1,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.02 : 2,080.69 = 918.14 : x
  2. Step 2: Convert to fraction form
    1,508.02/2,080.69 = 918.14/x
  3. Step 3: Cross multiply
    1,508.02x = 2,080.69 × 918.14
  4. Step 4: Simplify right side
    1,508.02x = 1,910,352.02
  5. Step 5: Solve for x
    x = 1,910,352.02/1,508.02
  6. Step 6: Final answer
    x = 1,266.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.