Home / 4,509.13-6,764.34-1,389.40

Finding the Fourth Proportional to 4,509.13, 6,764.34 and 1,389.40

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Solution

The fourth proportional to 4,509.13, 6,764.34 and 1,389.40 is: 2,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.13 : 6,764.34 = 1,389.40 : x
  2. Step 2: Convert to fraction form
    4,509.13/6,764.34 = 1,389.40/x
  3. Step 3: Cross multiply
    4,509.13x = 6,764.34 × 1,389.40
  4. Step 4: Simplify right side
    4,509.13x = 9,398,374.00
  5. Step 5: Solve for x
    x = 9,398,374.00/4,509.13
  6. Step 6: Final answer
    x = 2,084.30

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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.