Finding the Fourth Proportional to 2,164,021.08, 2,986,437.12 and 1,197,134.76
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Solution
The fourth proportional to 2,164,021.08, 2,986,437.12 and 1,197,134.76 is: 1,652,094.67
Step by Step Solution
- Step 1: Write the proportion equation
2,164,021.08 : 2,986,437.12 = 1,197,134.76 : x - Step 2: Convert to fraction form
2,164,021.08/2,986,437.12 = 1,197,134.76/x - Step 3: Cross multiply
2,164,021.08x = 2,986,437.12 × 1,197,134.76 - Step 4: Simplify right side
2,164,021.08x = 3,575,167,684,906.29 - Step 5: Solve for x
x = 3,575,167,684,906.29/2,164,021.08 - Step 6: Final answer
x = 1,652,094.67
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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.