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Finding the Fourth Proportional to 5,802.79, 8,704.35 and 1,420.24

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Solution

The fourth proportional to 5,802.79, 8,704.35 and 1,420.24 is: 2,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,802.79 : 8,704.35 = 1,420.24 : x
  2. Step 2: Convert to fraction form
    5,802.79/8,704.35 = 1,420.24/x
  3. Step 3: Cross multiply
    5,802.79x = 8,704.35 × 1,420.24
  4. Step 4: Simplify right side
    5,802.79x = 12,362,289.08
  5. Step 5: Solve for x
    x = 12,362,289.08/5,802.79
  6. Step 6: Final answer
    x = 2,130.40

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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.