Home / 1,534.69-2,115.75-1,036.54

Finding the Fourth Proportional to 1,534.69, 2,115.75 and 1,036.54

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Solution

The fourth proportional to 1,534.69, 2,115.75 and 1,036.54 is: 1,428.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.69 : 2,115.75 = 1,036.54 : x
  2. Step 2: Convert to fraction form
    1,534.69/2,115.75 = 1,036.54/x
  3. Step 3: Cross multiply
    1,534.69x = 2,115.75 × 1,036.54
  4. Step 4: Simplify right side
    1,534.69x = 2,193,059.51
  5. Step 5: Solve for x
    x = 2,193,059.51/1,534.69
  6. Step 6: Final answer
    x = 1,428.99

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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.