Home / 1,570.89-2,353.50-1,309.26

Finding the Fourth Proportional to 1,570.89, 2,353.50 and 1,309.26

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Solution

The fourth proportional to 1,570.89, 2,353.50 and 1,309.26 is: 1,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.89 : 2,353.50 = 1,309.26 : x
  2. Step 2: Convert to fraction form
    1,570.89/2,353.50 = 1,309.26/x
  3. Step 3: Cross multiply
    1,570.89x = 2,353.50 × 1,309.26
  4. Step 4: Simplify right side
    1,570.89x = 3,081,343.41
  5. Step 5: Solve for x
    x = 3,081,343.41/1,570.89
  6. Step 6: Final answer
    x = 1,961.53

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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.