Home / 2,420.32-3,341.28-1,489.36

Finding the Fourth Proportional to 2,420.32, 3,341.28 and 1,489.36

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Solution

The fourth proportional to 2,420.32, 3,341.28 and 1,489.36 is: 2,056.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.32 : 3,341.28 = 1,489.36 : x
  2. Step 2: Convert to fraction form
    2,420.32/3,341.28 = 1,489.36/x
  3. Step 3: Cross multiply
    2,420.32x = 3,341.28 × 1,489.36
  4. Step 4: Simplify right side
    2,420.32x = 4,976,368.78
  5. Step 5: Solve for x
    x = 4,976,368.78/2,420.32
  6. Step 6: Final answer
    x = 2,056.08

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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.