Home / 4,080.42-5,630.40-2,312.10

Finding the Fourth Proportional to 4,080.42, 5,630.40 and 2,312.10

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Solution

The fourth proportional to 4,080.42, 5,630.40 and 2,312.10 is: 3,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.42 : 5,630.40 = 2,312.10 : x
  2. Step 2: Convert to fraction form
    4,080.42/5,630.40 = 2,312.10/x
  3. Step 3: Cross multiply
    4,080.42x = 5,630.40 × 2,312.10
  4. Step 4: Simplify right side
    4,080.42x = 13,018,047.84
  5. Step 5: Solve for x
    x = 13,018,047.84/4,080.42
  6. Step 6: Final answer
    x = 3,190.37

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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.