Home / 1,631.64-2,444.40-808.95

Finding the Fourth Proportional to 1,631.64, 2,444.40 and 808.95

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Solution

The fourth proportional to 1,631.64, 2,444.40 and 808.95 is: 1,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.64 : 2,444.40 = 808.95 : x
  2. Step 2: Convert to fraction form
    1,631.64/2,444.40 = 808.95/x
  3. Step 3: Cross multiply
    1,631.64x = 2,444.40 × 808.95
  4. Step 4: Simplify right side
    1,631.64x = 1,977,397.38
  5. Step 5: Solve for x
    x = 1,977,397.38/1,631.64
  6. Step 6: Final answer
    x = 1,211.91

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1.5x scale

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.