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Finding the Fourth Proportional to 1,779.66, 2,669.46 and 958.32

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Solution

The fourth proportional to 1,779.66, 2,669.46 and 958.32 is: 1,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.66 : 2,669.46 = 958.32 : x
  2. Step 2: Convert to fraction form
    1,779.66/2,669.46 = 958.32/x
  3. Step 3: Cross multiply
    1,779.66x = 2,669.46 × 958.32
  4. Step 4: Simplify right side
    1,779.66x = 2,558,196.91
  5. Step 5: Solve for x
    x = 2,558,196.91/1,779.66
  6. Step 6: Final answer
    x = 1,437.46

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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.