Home / 3,647.70-5,036.61-2,807.10

Finding the Fourth Proportional to 3,647.70, 5,036.61 and 2,807.10

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Solution

The fourth proportional to 3,647.70, 5,036.61 and 2,807.10 is: 3,875.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.70 : 5,036.61 = 2,807.10 : x
  2. Step 2: Convert to fraction form
    3,647.70/5,036.61 = 2,807.10/x
  3. Step 3: Cross multiply
    3,647.70x = 5,036.61 × 2,807.10
  4. Step 4: Simplify right side
    3,647.70x = 14,138,267.93
  5. Step 5: Solve for x
    x = 14,138,267.93/3,647.70
  6. Step 6: Final answer
    x = 3,875.94

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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.