Home / 1,885.25-2,601.55-1,045.95

Finding the Fourth Proportional to 1,885.25, 2,601.55 and 1,045.95

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Solution

The fourth proportional to 1,885.25, 2,601.55 and 1,045.95 is: 1,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.25 : 2,601.55 = 1,045.95 : x
  2. Step 2: Convert to fraction form
    1,885.25/2,601.55 = 1,045.95/x
  3. Step 3: Cross multiply
    1,885.25x = 2,601.55 × 1,045.95
  4. Step 4: Simplify right side
    1,885.25x = 2,721,091.22
  5. Step 5: Solve for x
    x = 2,721,091.22/1,885.25
  6. Step 6: Final answer
    x = 1,443.36

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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.