Home / 5,428.81-7,492.12-3,038.99

Finding the Fourth Proportional to 5,428.81, 7,492.12 and 3,038.99

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Solution

The fourth proportional to 5,428.81, 7,492.12 and 3,038.99 is: 4,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.81 : 7,492.12 = 3,038.99 : x
  2. Step 2: Convert to fraction form
    5,428.81/7,492.12 = 3,038.99/x
  3. Step 3: Cross multiply
    5,428.81x = 7,492.12 × 3,038.99
  4. Step 4: Simplify right side
    5,428.81x = 22,768,504.46
  5. Step 5: Solve for x
    x = 22,768,504.46/5,428.81
  6. Step 6: Final answer
    x = 4,194.01

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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.