Home / 1,897.16-2,845.88-1,118.30

Finding the Fourth Proportional to 1,897.16, 2,845.88 and 1,118.30

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Solution

The fourth proportional to 1,897.16, 2,845.88 and 1,118.30 is: 1,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.16 : 2,845.88 = 1,118.30 : x
  2. Step 2: Convert to fraction form
    1,897.16/2,845.88 = 1,118.30/x
  3. Step 3: Cross multiply
    1,897.16x = 2,845.88 × 1,118.30
  4. Step 4: Simplify right side
    1,897.16x = 3,182,547.60
  5. Step 5: Solve for x
    x = 3,182,547.60/1,897.16
  6. Step 6: Final answer
    x = 1,677.53

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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.