Home / 1,461.80-2,192.70-975.40

Finding the Fourth Proportional to 1,461.80, 2,192.70 and 975.40

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Solution

The fourth proportional to 1,461.80, 2,192.70 and 975.40 is: 1,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.80 : 2,192.70 = 975.40 : x
  2. Step 2: Convert to fraction form
    1,461.80/2,192.70 = 975.40/x
  3. Step 3: Cross multiply
    1,461.80x = 2,192.70 × 975.40
  4. Step 4: Simplify right side
    1,461.80x = 2,138,759.58
  5. Step 5: Solve for x
    x = 2,138,759.58/1,461.80
  6. Step 6: Final answer
    x = 1,463.10

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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.