Home / 3,847,298.11-5,309,427.68-2,128,389.01

Finding the Fourth Proportional to 3,847,298.11, 5,309,427.68 and 2,128,389.01

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Solution

The fourth proportional to 3,847,298.11, 5,309,427.68 and 2,128,389.01 is: 2,937,263.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847,298.11 : 5,309,427.68 = 2,128,389.01 : x
  2. Step 2: Convert to fraction form
    3,847,298.11/5,309,427.68 = 2,128,389.01/x
  3. Step 3: Cross multiply
    3,847,298.11x = 5,309,427.68 × 2,128,389.01
  4. Step 4: Simplify right side
    3,847,298.11x = 11,300,527,523,501.79
  5. Step 5: Solve for x
    x = 11,300,527,523,501.79/3,847,298.11
  6. Step 6: Final answer
    x = 2,937,263.30

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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.