Home / 3,030.48-4,172.99-2,689.61

Finding the Fourth Proportional to 3,030.48, 4,172.99 and 2,689.61

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Solution

The fourth proportional to 3,030.48, 4,172.99 and 2,689.61 is: 3,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.48 : 4,172.99 = 2,689.61 : x
  2. Step 2: Convert to fraction form
    3,030.48/4,172.99 = 2,689.61/x
  3. Step 3: Cross multiply
    3,030.48x = 4,172.99 × 2,689.61
  4. Step 4: Simplify right side
    3,030.48x = 11,223,681.32
  5. Step 5: Solve for x
    x = 11,223,681.32/3,030.48
  6. Step 6: Final answer
    x = 3,703.60

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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.