Home / 2,089.28-2,885.57-1,424.99

Finding the Fourth Proportional to 2,089.28, 2,885.57 and 1,424.99

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Solution

The fourth proportional to 2,089.28, 2,885.57 and 1,424.99 is: 1,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.28 : 2,885.57 = 1,424.99 : x
  2. Step 2: Convert to fraction form
    2,089.28/2,885.57 = 1,424.99/x
  3. Step 3: Cross multiply
    2,089.28x = 2,885.57 × 1,424.99
  4. Step 4: Simplify right side
    2,089.28x = 4,111,908.39
  5. Step 5: Solve for x
    x = 4,111,908.39/2,089.28
  6. Step 6: Final answer
    x = 1,968.10

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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.