Home / 1,946.71-2,686.80-1,570.06

Finding the Fourth Proportional to 1,946.71, 2,686.80 and 1,570.06

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Solution

The fourth proportional to 1,946.71, 2,686.80 and 1,570.06 is: 2,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.71 : 2,686.80 = 1,570.06 : x
  2. Step 2: Convert to fraction form
    1,946.71/2,686.80 = 1,570.06/x
  3. Step 3: Cross multiply
    1,946.71x = 2,686.80 × 1,570.06
  4. Step 4: Simplify right side
    1,946.71x = 4,218,437.21
  5. Step 5: Solve for x
    x = 4,218,437.21/1,946.71
  6. Step 6: Final answer
    x = 2,166.96

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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.