Home / 2,117.64-2,922.41-1,173.58

Finding the Fourth Proportional to 2,117.64, 2,922.41 and 1,173.58

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Solution

The fourth proportional to 2,117.64, 2,922.41 and 1,173.58 is: 1,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.64 : 2,922.41 = 1,173.58 : x
  2. Step 2: Convert to fraction form
    2,117.64/2,922.41 = 1,173.58/x
  3. Step 3: Cross multiply
    2,117.64x = 2,922.41 × 1,173.58
  4. Step 4: Simplify right side
    2,117.64x = 3,429,681.93
  5. Step 5: Solve for x
    x = 3,429,681.93/2,117.64
  6. Step 6: Final answer
    x = 1,619.58

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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.