Home / 3,045.74-4,205.15-2,836.45

Finding the Fourth Proportional to 3,045.74, 4,205.15 and 2,836.45

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Solution

The fourth proportional to 3,045.74, 4,205.15 and 2,836.45 is: 3,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.74 : 4,205.15 = 2,836.45 : x
  2. Step 2: Convert to fraction form
    3,045.74/4,205.15 = 2,836.45/x
  3. Step 3: Cross multiply
    3,045.74x = 4,205.15 × 2,836.45
  4. Step 4: Simplify right side
    3,045.74x = 11,927,699.43
  5. Step 5: Solve for x
    x = 11,927,699.43/3,045.74
  6. Step 6: Final answer
    x = 3,916.20

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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.