Home / 1,777.02-2,449.35-1,187.34

Finding the Fourth Proportional to 1,777.02, 2,449.35 and 1,187.34

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Solution

The fourth proportional to 1,777.02, 2,449.35 and 1,187.34 is: 1,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.02 : 2,449.35 = 1,187.34 : x
  2. Step 2: Convert to fraction form
    1,777.02/2,449.35 = 1,187.34/x
  3. Step 3: Cross multiply
    1,777.02x = 2,449.35 × 1,187.34
  4. Step 4: Simplify right side
    1,777.02x = 2,908,211.23
  5. Step 5: Solve for x
    x = 2,908,211.23/1,777.02
  6. Step 6: Final answer
    x = 1,636.57

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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.