Home / 5,931.81-8,894.70-1,981.65

Finding the Fourth Proportional to 5,931.81, 8,894.70 and 1,981.65

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Solution

The fourth proportional to 5,931.81, 8,894.70 and 1,981.65 is: 2,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.81 : 8,894.70 = 1,981.65 : x
  2. Step 2: Convert to fraction form
    5,931.81/8,894.70 = 1,981.65/x
  3. Step 3: Cross multiply
    5,931.81x = 8,894.70 × 1,981.65
  4. Step 4: Simplify right side
    5,931.81x = 17,626,182.26
  5. Step 5: Solve for x
    x = 17,626,182.26/5,931.81
  6. Step 6: Final answer
    x = 2,971.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.