Home / 1,717.42-2,370.06-931.48

Finding the Fourth Proportional to 1,717.42, 2,370.06 and 931.48

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Solution

The fourth proportional to 1,717.42, 2,370.06 and 931.48 is: 1,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.42 : 2,370.06 = 931.48 : x
  2. Step 2: Convert to fraction form
    1,717.42/2,370.06 = 931.48/x
  3. Step 3: Cross multiply
    1,717.42x = 2,370.06 × 931.48
  4. Step 4: Simplify right side
    1,717.42x = 2,207,663.49
  5. Step 5: Solve for x
    x = 2,207,663.49/1,717.42
  6. Step 6: Final answer
    x = 1,285.45

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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.