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Finding the Fourth Proportional to 530.10, 795.15 and 522.90

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Solution

The fourth proportional to 530.10, 795.15 and 522.90 is: 784.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.10 : 795.15 = 522.90 : x
  2. Step 2: Convert to fraction form
    530.10/795.15 = 522.90/x
  3. Step 3: Cross multiply
    530.10x = 795.15 × 522.90
  4. Step 4: Simplify right side
    530.10x = 415,783.94
  5. Step 5: Solve for x
    x = 415,783.94/530.10
  6. Step 6: Final answer
    x = 784.35

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Double scale
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Similar ratio
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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.