Home / 4,510.13-6,765.84-1,390.40

Finding the Fourth Proportional to 4,510.13, 6,765.84 and 1,390.40

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Solution

The fourth proportional to 4,510.13, 6,765.84 and 1,390.40 is: 2,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,510.13 : 6,765.84 = 1,390.40 : x
  2. Step 2: Convert to fraction form
    4,510.13/6,765.84 = 1,390.40/x
  3. Step 3: Cross multiply
    4,510.13x = 6,765.84 × 1,390.40
  4. Step 4: Simplify right side
    4,510.13x = 9,407,223.94
  5. Step 5: Solve for x
    x = 9,407,223.94/4,510.13
  6. Step 6: Final answer
    x = 2,085.80

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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.