Home / 5,688.80-8,492.56-4,813.76

Finding the Fourth Proportional to 5,688.80, 8,492.56 and 4,813.76

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Solution

The fourth proportional to 5,688.80, 8,492.56 and 4,813.76 is: 7,186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.80 : 8,492.56 = 4,813.76 : x
  2. Step 2: Convert to fraction form
    5,688.80/8,492.56 = 4,813.76/x
  3. Step 3: Cross multiply
    5,688.80x = 8,492.56 × 4,813.76
  4. Step 4: Simplify right side
    5,688.80x = 40,881,145.63
  5. Step 5: Solve for x
    x = 40,881,145.63/5,688.80
  6. Step 6: Final answer
    x = 7,186.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.