Home / 1,887.13-2,829.59-570.49

Finding the Fourth Proportional to 1,887.13, 2,829.59 and 570.49

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Solution

The fourth proportional to 1,887.13, 2,829.59 and 570.49 is: 855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.13 : 2,829.59 = 570.49 : x
  2. Step 2: Convert to fraction form
    1,887.13/2,829.59 = 570.49/x
  3. Step 3: Cross multiply
    1,887.13x = 2,829.59 × 570.49
  4. Step 4: Simplify right side
    1,887.13x = 1,614,245.01
  5. Step 5: Solve for x
    x = 1,614,245.01/1,887.13
  6. Step 6: Final answer
    x = 855.40

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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.