Home / 1,715.83-2,365.36-1,125.34

Finding the Fourth Proportional to 1,715.83, 2,365.36 and 1,125.34

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Solution

The fourth proportional to 1,715.83, 2,365.36 and 1,125.34 is: 1,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.83 : 2,365.36 = 1,125.34 : x
  2. Step 2: Convert to fraction form
    1,715.83/2,365.36 = 1,125.34/x
  3. Step 3: Cross multiply
    1,715.83x = 2,365.36 × 1,125.34
  4. Step 4: Simplify right side
    1,715.83x = 2,661,834.22
  5. Step 5: Solve for x
    x = 2,661,834.22/1,715.83
  6. Step 6: Final answer
    x = 1,551.34

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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.