Home / 2,931.12-4,045.04-2,345.84

Finding the Fourth Proportional to 2,931.12, 4,045.04 and 2,345.84

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Solution

The fourth proportional to 2,931.12, 4,045.04 and 2,345.84 is: 3,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.12 : 4,045.04 = 2,345.84 : x
  2. Step 2: Convert to fraction form
    2,931.12/4,045.04 = 2,345.84/x
  3. Step 3: Cross multiply
    2,931.12x = 4,045.04 × 2,345.84
  4. Step 4: Simplify right side
    2,931.12x = 9,489,016.63
  5. Step 5: Solve for x
    x = 9,489,016.63/2,931.12
  6. Step 6: Final answer
    x = 3,237.33

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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.