Home / 4,977.04-7,465.92-1,688.80

Finding the Fourth Proportional to 4,977.04, 7,465.92 and 1,688.80

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Solution

The fourth proportional to 4,977.04, 7,465.92 and 1,688.80 is: 2,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.04 : 7,465.92 = 1,688.80 : x
  2. Step 2: Convert to fraction form
    4,977.04/7,465.92 = 1,688.80/x
  3. Step 3: Cross multiply
    4,977.04x = 7,465.92 × 1,688.80
  4. Step 4: Simplify right side
    4,977.04x = 12,608,445.70
  5. Step 5: Solve for x
    x = 12,608,445.70/4,977.04
  6. Step 6: Final answer
    x = 2,533.32

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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.