Home / 1,946.89-2,920.78-630.59

Finding the Fourth Proportional to 1,946.89, 2,920.78 and 630.59

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Solution

The fourth proportional to 1,946.89, 2,920.78 and 630.59 is: 946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.89 : 2,920.78 = 630.59 : x
  2. Step 2: Convert to fraction form
    1,946.89/2,920.78 = 630.59/x
  3. Step 3: Cross multiply
    1,946.89x = 2,920.78 × 630.59
  4. Step 4: Simplify right side
    1,946.89x = 1,841,802.62
  5. Step 5: Solve for x
    x = 1,841,802.62/1,946.89
  6. Step 6: Final answer
    x = 946.03

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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.