Home / 1,570.07-2,165.13-1,333.76

Finding the Fourth Proportional to 1,570.07, 2,165.13 and 1,333.76

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Solution

The fourth proportional to 1,570.07, 2,165.13 and 1,333.76 is: 1,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.07 : 2,165.13 = 1,333.76 : x
  2. Step 2: Convert to fraction form
    1,570.07/2,165.13 = 1,333.76/x
  3. Step 3: Cross multiply
    1,570.07x = 2,165.13 × 1,333.76
  4. Step 4: Simplify right side
    1,570.07x = 2,887,763.79
  5. Step 5: Solve for x
    x = 2,887,763.79/1,570.07
  6. Step 6: Final answer
    x = 1,839.26

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1.5x scale

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.