Home / 3,364.47-4,642.65-1,872.45

Finding the Fourth Proportional to 3,364.47, 4,642.65 and 1,872.45

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Solution

The fourth proportional to 3,364.47, 4,642.65 and 1,872.45 is: 2,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.47 : 4,642.65 = 1,872.45 : x
  2. Step 2: Convert to fraction form
    3,364.47/4,642.65 = 1,872.45/x
  3. Step 3: Cross multiply
    3,364.47x = 4,642.65 × 1,872.45
  4. Step 4: Simplify right side
    3,364.47x = 8,693,129.99
  5. Step 5: Solve for x
    x = 8,693,129.99/3,364.47
  6. Step 6: Final answer
    x = 2,583.80

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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.