Home / 6,465.04-8,922.80-4,890.40

Finding the Fourth Proportional to 6,465.04, 8,922.80 and 4,890.40

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Solution

The fourth proportional to 6,465.04, 8,922.80 and 4,890.40 is: 6,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,465.04 : 8,922.80 = 4,890.40 : x
  2. Step 2: Convert to fraction form
    6,465.04/8,922.80 = 4,890.40/x
  3. Step 3: Cross multiply
    6,465.04x = 8,922.80 × 4,890.40
  4. Step 4: Simplify right side
    6,465.04x = 43,636,061.12
  5. Step 5: Solve for x
    x = 43,636,061.12/6,465.04
  6. Step 6: Final answer
    x = 6,749.54

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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.