Home / 2,970.04-4,095.30-2,221.60

Finding the Fourth Proportional to 2,970.04, 4,095.30 and 2,221.60

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Solution

The fourth proportional to 2,970.04, 4,095.30 and 2,221.60 is: 3,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.04 : 4,095.30 = 2,221.60 : x
  2. Step 2: Convert to fraction form
    2,970.04/4,095.30 = 2,221.60/x
  3. Step 3: Cross multiply
    2,970.04x = 4,095.30 × 2,221.60
  4. Step 4: Simplify right side
    2,970.04x = 9,098,118.48
  5. Step 5: Solve for x
    x = 9,098,118.48/2,970.04
  6. Step 6: Final answer
    x = 3,063.30

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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.