Home / 3,710.40-5,114.32-2,715.84

Finding the Fourth Proportional to 3,710.40, 5,114.32 and 2,715.84

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Solution

The fourth proportional to 3,710.40, 5,114.32 and 2,715.84 is: 3,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.40 : 5,114.32 = 2,715.84 : x
  2. Step 2: Convert to fraction form
    3,710.40/5,114.32 = 2,715.84/x
  3. Step 3: Cross multiply
    3,710.40x = 5,114.32 × 2,715.84
  4. Step 4: Simplify right side
    3,710.40x = 13,889,674.83
  5. Step 5: Solve for x
    x = 13,889,674.83/3,710.40
  6. Step 6: Final answer
    x = 3,743.44

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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.