Home / 2,831,428.80-4,225,752.09-2,639,445.57

Finding the Fourth Proportional to 2,831,428.80, 4,225,752.09 and 2,639,445.57

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Solution

The fourth proportional to 2,831,428.80, 4,225,752.09 and 2,639,445.57 is: 3,939,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831,428.80 : 4,225,752.09 = 2,639,445.57 : x
  2. Step 2: Convert to fraction form
    2,831,428.80/4,225,752.09 = 2,639,445.57/x
  3. Step 3: Cross multiply
    2,831,428.80x = 4,225,752.09 × 2,639,445.57
  4. Step 4: Simplify right side
    2,831,428.80x = 11,153,642,633,868.74
  5. Step 5: Solve for x
    x = 11,153,642,633,868.74/2,831,428.80
  6. Step 6: Final answer
    x = 3,939,227.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.