Home / 6,865.84-10,298.40-4,779.68

Finding the Fourth Proportional to 6,865.84, 10,298.40 and 4,779.68

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Solution

The fourth proportional to 6,865.84, 10,298.40 and 4,779.68 is: 7,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.84 : 10,298.40 = 4,779.68 : x
  2. Step 2: Convert to fraction form
    6,865.84/10,298.40 = 4,779.68/x
  3. Step 3: Cross multiply
    6,865.84x = 10,298.40 × 4,779.68
  4. Step 4: Simplify right side
    6,865.84x = 49,223,056.51
  5. Step 5: Solve for x
    x = 49,223,056.51/6,865.84
  6. Step 6: Final answer
    x = 7,169.27

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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.