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Finding the Fourth Proportional to 1,335.86, 1,840.98 and 962.19

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Solution

The fourth proportional to 1,335.86, 1,840.98 and 962.19 is: 1,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.86 : 1,840.98 = 962.19 : x
  2. Step 2: Convert to fraction form
    1,335.86/1,840.98 = 962.19/x
  3. Step 3: Cross multiply
    1,335.86x = 1,840.98 × 962.19
  4. Step 4: Simplify right side
    1,335.86x = 1,771,372.55
  5. Step 5: Solve for x
    x = 1,771,372.55/1,335.86
  6. Step 6: Final answer
    x = 1,326.02

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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.