Home / 1,534.89-2,118.17-836.26

Finding the Fourth Proportional to 1,534.89, 2,118.17 and 836.26

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Solution

The fourth proportional to 1,534.89, 2,118.17 and 836.26 is: 1,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.89 : 2,118.17 = 836.26 : x
  2. Step 2: Convert to fraction form
    1,534.89/2,118.17 = 836.26/x
  3. Step 3: Cross multiply
    1,534.89x = 2,118.17 × 836.26
  4. Step 4: Simplify right side
    1,534.89x = 1,771,336.66
  5. Step 5: Solve for x
    x = 1,771,336.66/1,534.89
  6. Step 6: Final answer
    x = 1,154.05

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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.