Home / 2,420.87-3,341.08-1,358.92

Finding the Fourth Proportional to 2,420.87, 3,341.08 and 1,358.92

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Solution

The fourth proportional to 2,420.87, 3,341.08 and 1,358.92 is: 1,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.87 : 3,341.08 = 1,358.92 : x
  2. Step 2: Convert to fraction form
    2,420.87/3,341.08 = 1,358.92/x
  3. Step 3: Cross multiply
    2,420.87x = 3,341.08 × 1,358.92
  4. Step 4: Simplify right side
    2,420.87x = 4,540,260.43
  5. Step 5: Solve for x
    x = 4,540,260.43/2,420.87
  6. Step 6: Final answer
    x = 1,875.47

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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.