Home / 2,159.14-2,980.46-1,362.30

Finding the Fourth Proportional to 2,159.14, 2,980.46 and 1,362.30

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Solution

The fourth proportional to 2,159.14, 2,980.46 and 1,362.30 is: 1,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.14 : 2,980.46 = 1,362.30 : x
  2. Step 2: Convert to fraction form
    2,159.14/2,980.46 = 1,362.30/x
  3. Step 3: Cross multiply
    2,159.14x = 2,980.46 × 1,362.30
  4. Step 4: Simplify right side
    2,159.14x = 4,060,265.76
  5. Step 5: Solve for x
    x = 4,060,265.76/2,159.14
  6. Step 6: Final answer
    x = 1,880.51

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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.