Home / 1,521.06-2,097.90-1,148.10

Finding the Fourth Proportional to 1,521.06, 2,097.90 and 1,148.10

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Solution

The fourth proportional to 1,521.06, 2,097.90 and 1,148.10 is: 1,583.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.06 : 2,097.90 = 1,148.10 : x
  2. Step 2: Convert to fraction form
    1,521.06/2,097.90 = 1,148.10/x
  3. Step 3: Cross multiply
    1,521.06x = 2,097.90 × 1,148.10
  4. Step 4: Simplify right side
    1,521.06x = 2,408,598.99
  5. Step 5: Solve for x
    x = 2,408,598.99/1,521.06
  6. Step 6: Final answer
    x = 1,583.50

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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.