Home / 3,125.35-4,312.44-1,866.91

Finding the Fourth Proportional to 3,125.35, 4,312.44 and 1,866.91

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Solution

The fourth proportional to 3,125.35, 4,312.44 and 1,866.91 is: 2,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.35 : 4,312.44 = 1,866.91 : x
  2. Step 2: Convert to fraction form
    3,125.35/4,312.44 = 1,866.91/x
  3. Step 3: Cross multiply
    3,125.35x = 4,312.44 × 1,866.91
  4. Step 4: Simplify right side
    3,125.35x = 8,050,915.80
  5. Step 5: Solve for x
    x = 8,050,915.80/3,125.35
  6. Step 6: Final answer
    x = 2,576.01

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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.