Home / 1,476.12-2,036.40-886.31

Finding the Fourth Proportional to 1,476.12, 2,036.40 and 886.31

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Solution

The fourth proportional to 1,476.12, 2,036.40 and 886.31 is: 1,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.12 : 2,036.40 = 886.31 : x
  2. Step 2: Convert to fraction form
    1,476.12/2,036.40 = 886.31/x
  3. Step 3: Cross multiply
    1,476.12x = 2,036.40 × 886.31
  4. Step 4: Simplify right side
    1,476.12x = 1,804,886.78
  5. Step 5: Solve for x
    x = 1,804,886.78/1,476.12
  6. Step 6: Final answer
    x = 1,222.72

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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.