Home / 2,415.02-3,332.39-1,420.83

Finding the Fourth Proportional to 2,415.02, 3,332.39 and 1,420.83

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Solution

The fourth proportional to 2,415.02, 3,332.39 and 1,420.83 is: 1,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.02 : 3,332.39 = 1,420.83 : x
  2. Step 2: Convert to fraction form
    2,415.02/3,332.39 = 1,420.83/x
  3. Step 3: Cross multiply
    2,415.02x = 3,332.39 × 1,420.83
  4. Step 4: Simplify right side
    2,415.02x = 4,734,752.58
  5. Step 5: Solve for x
    x = 4,734,752.58/2,415.02
  6. Step 6: Final answer
    x = 1,960.55

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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.