Home / 1,461.60-2,192.40-1,187.01

Finding the Fourth Proportional to 1,461.60, 2,192.40 and 1,187.01

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Solution

The fourth proportional to 1,461.60, 2,192.40 and 1,187.01 is: 1,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.60 : 2,192.40 = 1,187.01 : x
  2. Step 2: Convert to fraction form
    1,461.60/2,192.40 = 1,187.01/x
  3. Step 3: Cross multiply
    1,461.60x = 2,192.40 × 1,187.01
  4. Step 4: Simplify right side
    1,461.60x = 2,602,400.72
  5. Step 5: Solve for x
    x = 2,602,400.72/1,461.60
  6. Step 6: Final answer
    x = 1,780.52

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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.