Home / 4,975.29-6,864.95-2,985.12

Finding the Fourth Proportional to 4,975.29, 6,864.95 and 2,985.12

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Solution

The fourth proportional to 4,975.29, 6,864.95 and 2,985.12 is: 4,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.29 : 6,864.95 = 2,985.12 : x
  2. Step 2: Convert to fraction form
    4,975.29/6,864.95 = 2,985.12/x
  3. Step 3: Cross multiply
    4,975.29x = 6,864.95 × 2,985.12
  4. Step 4: Simplify right side
    4,975.29x = 20,492,707.01
  5. Step 5: Solve for x
    x = 20,492,707.01/4,975.29
  6. Step 6: Final answer
    x = 4,118.90

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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.