Home / 1,117.58-1,541.38-1,043.06

Finding the Fourth Proportional to 1,117.58, 1,541.38 and 1,043.06

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Solution

The fourth proportional to 1,117.58, 1,541.38 and 1,043.06 is: 1,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.58 : 1,541.38 = 1,043.06 : x
  2. Step 2: Convert to fraction form
    1,117.58/1,541.38 = 1,043.06/x
  3. Step 3: Cross multiply
    1,117.58x = 1,541.38 × 1,043.06
  4. Step 4: Simplify right side
    1,117.58x = 1,607,751.82
  5. Step 5: Solve for x
    x = 1,607,751.82/1,117.58
  6. Step 6: Final answer
    x = 1,438.60

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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.