Home / 2,920.99-4,360.67-2,818.47

Finding the Fourth Proportional to 2,920.99, 4,360.67 and 2,818.47

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Solution

The fourth proportional to 2,920.99, 4,360.67 and 2,818.47 is: 4,207.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.99 : 4,360.67 = 2,818.47 : x
  2. Step 2: Convert to fraction form
    2,920.99/4,360.67 = 2,818.47/x
  3. Step 3: Cross multiply
    2,920.99x = 4,360.67 × 2,818.47
  4. Step 4: Simplify right side
    2,920.99x = 12,290,395.77
  5. Step 5: Solve for x
    x = 12,290,395.77/2,920.99
  6. Step 6: Final answer
    x = 4,207.62

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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.