Home / 3,870,535.20-5,341,475.44-2,128,337.20

Finding the Fourth Proportional to 3,870,535.20, 5,341,475.44 and 2,128,337.20

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Solution

The fourth proportional to 3,870,535.20, 5,341,475.44 and 2,128,337.20 is: 2,937,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,535.20 : 5,341,475.44 = 2,128,337.20 : x
  2. Step 2: Convert to fraction form
    3,870,535.20/5,341,475.44 = 2,128,337.20/x
  3. Step 3: Cross multiply
    3,870,535.20x = 5,341,475.44 × 2,128,337.20
  4. Step 4: Simplify right side
    3,870,535.20x = 11,368,460,881,838.37
  5. Step 5: Solve for x
    x = 11,368,460,881,838.37/3,870,535.20
  6. Step 6: Final answer
    x = 2,937,180.60

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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.