Home / 3,261.40-4,894.80-1,509.10

Finding the Fourth Proportional to 3,261.40, 4,894.80 and 1,509.10

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Solution

The fourth proportional to 3,261.40, 4,894.80 and 1,509.10 is: 2,264.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.40 : 4,894.80 = 1,509.10 : x
  2. Step 2: Convert to fraction form
    3,261.40/4,894.80 = 1,509.10/x
  3. Step 3: Cross multiply
    3,261.40x = 4,894.80 × 1,509.10
  4. Step 4: Simplify right side
    3,261.40x = 7,386,742.68
  5. Step 5: Solve for x
    x = 7,386,742.68/3,261.40
  6. Step 6: Final answer
    x = 2,264.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.