Home / 3,871,400-5,342,279.04-2,152,457.12

Finding the Fourth Proportional to 3,871,400, 5,342,279.04 and 2,152,457.12

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Solution

The fourth proportional to 3,871,400, 5,342,279.04 and 2,152,457.12 is: 2,970,250.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,400 : 5,342,279.04 = 2,152,457.12 : x
  2. Step 2: Convert to fraction form
    3,871,400/5,342,279.04 = 2,152,457.12/x
  3. Step 3: Cross multiply
    3,871,400x = 5,342,279.04 × 2,152,457.12
  4. Step 4: Simplify right side
    3,871,400x = 11,499,026,556,674.77
  5. Step 5: Solve for x
    x = 11,499,026,556,674.77/3,871,400
  6. Step 6: Final answer
    x = 2,970,250.18

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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.