Home / 3,145.04-4,339.85-1,885.86

Finding the Fourth Proportional to 3,145.04, 4,339.85 and 1,885.86

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Solution

The fourth proportional to 3,145.04, 4,339.85 and 1,885.86 is: 2,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.04 : 4,339.85 = 1,885.86 : x
  2. Step 2: Convert to fraction form
    3,145.04/4,339.85 = 1,885.86/x
  3. Step 3: Cross multiply
    3,145.04x = 4,339.85 × 1,885.86
  4. Step 4: Simplify right side
    3,145.04x = 8,184,349.52
  5. Step 5: Solve for x
    x = 8,184,349.52/3,145.04
  6. Step 6: Final answer
    x = 2,602.30

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Double scale
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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.