Home / 2,897.36-4,345.12-1,252.86

Finding the Fourth Proportional to 2,897.36, 4,345.12 and 1,252.86

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Solution

The fourth proportional to 2,897.36, 4,345.12 and 1,252.86 is: 1,878.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.36 : 4,345.12 = 1,252.86 : x
  2. Step 2: Convert to fraction form
    2,897.36/4,345.12 = 1,252.86/x
  3. Step 3: Cross multiply
    2,897.36x = 4,345.12 × 1,252.86
  4. Step 4: Simplify right side
    2,897.36x = 5,443,827.04
  5. Step 5: Solve for x
    x = 5,443,827.04/2,897.36
  6. Step 6: Final answer
    x = 1,878.89

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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.