Home / 2,087.07-3,130.59-548.07

Finding the Fourth Proportional to 2,087.07, 3,130.59 and 548.07

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Solution

The fourth proportional to 2,087.07, 3,130.59 and 548.07 is: 822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.07 : 3,130.59 = 548.07 : x
  2. Step 2: Convert to fraction form
    2,087.07/3,130.59 = 548.07/x
  3. Step 3: Cross multiply
    2,087.07x = 3,130.59 × 548.07
  4. Step 4: Simplify right side
    2,087.07x = 1,715,782.46
  5. Step 5: Solve for x
    x = 1,715,782.46/2,087.07
  6. Step 6: Final answer
    x = 822.10

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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.