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Finding the Fourth Proportional to 895.67, 1,342.88 and 347.39

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Solution

The fourth proportional to 895.67, 1,342.88 and 347.39 is: 520.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.67 : 1,342.88 = 347.39 : x
  2. Step 2: Convert to fraction form
    895.67/1,342.88 = 347.39/x
  3. Step 3: Cross multiply
    895.67x = 1,342.88 × 347.39
  4. Step 4: Simplify right side
    895.67x = 466,501.35
  5. Step 5: Solve for x
    x = 466,501.35/895.67
  6. Step 6: Final answer
    x = 520.84

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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.