Home / 1,570.20-2,346.10-1,515.72

Finding the Fourth Proportional to 1,570.20, 2,346.10 and 1,515.72

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Solution

The fourth proportional to 1,570.20, 2,346.10 and 1,515.72 is: 2,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.20 : 2,346.10 = 1,515.72 : x
  2. Step 2: Convert to fraction form
    1,570.20/2,346.10 = 1,515.72/x
  3. Step 3: Cross multiply
    1,570.20x = 2,346.10 × 1,515.72
  4. Step 4: Simplify right side
    1,570.20x = 3,556,030.69
  5. Step 5: Solve for x
    x = 3,556,030.69/1,570.20
  6. Step 6: Final answer
    x = 2,264.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.