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Finding the Fourth Proportional to 895.95, 1,237.14 and 581.40

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Solution

The fourth proportional to 895.95, 1,237.14 and 581.40 is: 802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.95 : 1,237.14 = 581.40 : x
  2. Step 2: Convert to fraction form
    895.95/1,237.14 = 581.40/x
  3. Step 3: Cross multiply
    895.95x = 1,237.14 × 581.40
  4. Step 4: Simplify right side
    895.95x = 719,273.20
  5. Step 5: Solve for x
    x = 719,273.20/895.95
  6. Step 6: Final answer
    x = 802.81

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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.