Home / 1,751.89-2,417.41-965.78

Finding the Fourth Proportional to 1,751.89, 2,417.41 and 965.78

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Solution

The fourth proportional to 1,751.89, 2,417.41 and 965.78 is: 1,332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.89 : 2,417.41 = 965.78 : x
  2. Step 2: Convert to fraction form
    1,751.89/2,417.41 = 965.78/x
  3. Step 3: Cross multiply
    1,751.89x = 2,417.41 × 965.78
  4. Step 4: Simplify right side
    1,751.89x = 2,334,681.40
  5. Step 5: Solve for x
    x = 2,334,681.40/1,751.89
  6. Step 6: Final answer
    x = 1,332.67

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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.