Home / 4,677.65-6,455.45-2,688.51

Finding the Fourth Proportional to 4,677.65, 6,455.45 and 2,688.51

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Solution

The fourth proportional to 4,677.65, 6,455.45 and 2,688.51 is: 3,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.65 : 6,455.45 = 2,688.51 : x
  2. Step 2: Convert to fraction form
    4,677.65/6,455.45 = 2,688.51/x
  3. Step 3: Cross multiply
    4,677.65x = 6,455.45 × 2,688.51
  4. Step 4: Simplify right side
    4,677.65x = 17,355,528.44
  5. Step 5: Solve for x
    x = 17,355,528.44/4,677.65
  6. Step 6: Final answer
    x = 3,710.31

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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.