Home / 2,880.16-4,318.74-1,235.80

Finding the Fourth Proportional to 2,880.16, 4,318.74 and 1,235.80

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Solution

The fourth proportional to 2,880.16, 4,318.74 and 1,235.80 is: 1,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.16 : 4,318.74 = 1,235.80 : x
  2. Step 2: Convert to fraction form
    2,880.16/4,318.74 = 1,235.80/x
  3. Step 3: Cross multiply
    2,880.16x = 4,318.74 × 1,235.80
  4. Step 4: Simplify right side
    2,880.16x = 5,337,098.89
  5. Step 5: Solve for x
    x = 5,337,098.89/2,880.16
  6. Step 6: Final answer
    x = 1,853.06

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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.