Home / 1,776.64-2,452.32-1,187.32

Finding the Fourth Proportional to 1,776.64, 2,452.32 and 1,187.32

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Solution

The fourth proportional to 1,776.64, 2,452.32 and 1,187.32 is: 1,638.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.64 : 2,452.32 = 1,187.32 : x
  2. Step 2: Convert to fraction form
    1,776.64/2,452.32 = 1,187.32/x
  3. Step 3: Cross multiply
    1,776.64x = 2,452.32 × 1,187.32
  4. Step 4: Simplify right side
    1,776.64x = 2,911,688.58
  5. Step 5: Solve for x
    x = 2,911,688.58/1,776.64
  6. Step 6: Final answer
    x = 1,638.87

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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.