Home / 2,870.79-3,962.10-1,612.36

Finding the Fourth Proportional to 2,870.79, 3,962.10 and 1,612.36

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Solution

The fourth proportional to 2,870.79, 3,962.10 and 1,612.36 is: 2,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.79 : 3,962.10 = 1,612.36 : x
  2. Step 2: Convert to fraction form
    2,870.79/3,962.10 = 1,612.36/x
  3. Step 3: Cross multiply
    2,870.79x = 3,962.10 × 1,612.36
  4. Step 4: Simplify right side
    2,870.79x = 6,388,331.56
  5. Step 5: Solve for x
    x = 6,388,331.56/2,870.79
  6. Step 6: Final answer
    x = 2,225.29

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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.