Home / 5,312.40-7,953.60-2,807.91

Finding the Fourth Proportional to 5,312.40, 7,953.60 and 2,807.91

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Solution

The fourth proportional to 5,312.40, 7,953.60 and 2,807.91 is: 4,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.40 : 7,953.60 = 2,807.91 : x
  2. Step 2: Convert to fraction form
    5,312.40/7,953.60 = 2,807.91/x
  3. Step 3: Cross multiply
    5,312.40x = 7,953.60 × 2,807.91
  4. Step 4: Simplify right side
    5,312.40x = 22,332,992.98
  5. Step 5: Solve for x
    x = 22,332,992.98/5,312.40
  6. Step 6: Final answer
    x = 4,203.94

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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.