Home / 2,979.30-4,111.08-1,652.82

Finding the Fourth Proportional to 2,979.30, 4,111.08 and 1,652.82

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Solution

The fourth proportional to 2,979.30, 4,111.08 and 1,652.82 is: 2,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.30 : 4,111.08 = 1,652.82 : x
  2. Step 2: Convert to fraction form
    2,979.30/4,111.08 = 1,652.82/x
  3. Step 3: Cross multiply
    2,979.30x = 4,111.08 × 1,652.82
  4. Step 4: Simplify right side
    2,979.30x = 6,794,875.25
  5. Step 5: Solve for x
    x = 6,794,875.25/2,979.30
  6. Step 6: Final answer
    x = 2,280.70

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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.