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Finding the Fourth Proportional to 2,887.65, 4,328.10 and 1,656.23

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Solution

The fourth proportional to 2,887.65, 4,328.10 and 1,656.23 is: 2,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.65 : 4,328.10 = 1,656.23 : x
  2. Step 2: Convert to fraction form
    2,887.65/4,328.10 = 1,656.23/x
  3. Step 3: Cross multiply
    2,887.65x = 4,328.10 × 1,656.23
  4. Step 4: Simplify right side
    2,887.65x = 7,168,307.42
  5. Step 5: Solve for x
    x = 7,168,307.42/2,887.65
  6. Step 6: Final answer
    x = 2,482.40

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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.