Home / 4,678.16-7,017.24-1,215.40

Finding the Fourth Proportional to 4,678.16, 7,017.24 and 1,215.40

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Solution

The fourth proportional to 4,678.16, 7,017.24 and 1,215.40 is: 1,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.16 : 7,017.24 = 1,215.40 : x
  2. Step 2: Convert to fraction form
    4,678.16/7,017.24 = 1,215.40/x
  3. Step 3: Cross multiply
    4,678.16x = 7,017.24 × 1,215.40
  4. Step 4: Simplify right side
    4,678.16x = 8,528,753.50
  5. Step 5: Solve for x
    x = 8,528,753.50/4,678.16
  6. Step 6: Final answer
    x = 1,823.10

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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.